In addition to the 2 speed sensors identified in the linked post, there is a speed sensor at each wheel, used for Anti-skid braking, traction control, stability control, and to drive the speedometer. The red lines in the attached image mark the signal flow from wheel speed sensors to speedometer. This signal also is used by the Navigation system.
Since all 6 speed sensors are passive devices, no battery power is required for their operation and therefore none have fuses.
Fuses for the ABS control module are labeled ABS/VSC 1 and ABS/VSC 2.
If your symptoms are transmission related, the two speed sensors mounted atop the transmission are the ones to check or replace. The engine control computer will store a code to identify which (if any) are faulty.
Sensors are powered by whatever module they are connected to. Magnetic sensors are pretty much extinct, digital sensors are way more accurate. So, if you are talking about a rear wheel speed sensor, and you live where there is road salt or sea salt, Toyota has a chronic issue where the sensors corrode through the pins in the connector, as the seal is terrible.Note to self, unplug a ws sensors and coat the seals with dielectric grease.
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